Physics The unit of noise pollution (level) is : Decimal Ppm Decibel None of these Decimal Ppm Decibel None of these ANSWER DOWNLOAD EXAMIANS APP
Physics For a body moving with uniform acceleration its final velocity equals ________ Average velocity + initial velocity Average velocity - initial velocity 2 x average velocity + initial velocity 2 x average velocity - initial velocity Average velocity + initial velocity Average velocity - initial velocity 2 x average velocity + initial velocity 2 x average velocity - initial velocity ANSWER DOWNLOAD EXAMIANS APP
Physics Sound travels with a different speed in media. In what order does the velocity of sound increase in these media? Iron, water and air Iron, air and water Air, water and iron Water, iron and air Iron, water and air Iron, air and water Air, water and iron Water, iron and air ANSWER DOWNLOAD EXAMIANS APP
Physics 'Mirage' is an example of Refraction and total internal reflection of light Dispersion of light only Total internal reflection of light only Refraction of light only Refraction and total internal reflection of light Dispersion of light only Total internal reflection of light only Refraction of light only ANSWER DOWNLOAD EXAMIANS APP
Physics The coil wire in the electric room heater or electric cooking heater is called ________ Element Cells Filament Circuit Element Cells Filament Circuit ANSWER DOWNLOAD EXAMIANS APP
Physics On which of the following techniques photostate machine works ? Thermal Image—Making Electromagnetic Image— Making Magnetic Image—Making Electrostatic Image—Making Thermal Image—Making Electromagnetic Image— Making Magnetic Image—Making Electrostatic Image—Making ANSWER DOWNLOAD EXAMIANS APP
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